The technique used when some asshole is tailgating you. Use these simple steps.
1. Position yourself so that they can't pass you right away (like between a car or truck)
2. Slow down to a speed you deem "ridiculous"
3. Speed away quickly
4. Watch them pass you and give you a nasty look.
5. Flip them off and laugh
Made famous by New Jersians, but can be used by anybody.

Dude, I gave some asshole the Jersey dash and flip the other day. It was HILARIOUS!!!!